Week13 劉柏廷

今日的Processing 車子移動範例程式"

void setup() {
size(640, 480, P3D);
rectMode(CENTER);
}
float carX=640/2, carY=320/2;
float carDir=PI, carWheel=0;
void drawCar() {
pushMatrix();
translate(carX, carY);
rotateZ(carDir);
rect(0, 0, 187, 89);
drawWheel(127/2, 89/2, 1);
drawWheel(127/2, -89/2, 1);
drawWheel(-127/2, 89/2, 0);
drawWheel(-127/2, -89/2, 0);

if (keyPressed && keyCode==UP) {
carX+= cos(carDir+carWheel);
carY+=sin(carDir+carWheel);
carDir+=carWheel/50;
} else if (keyPressed && keyCode==DOWN) {
carX-= cos(carDir+carWheel);
carY-=sin(carDir+carWheel);
carDir-=carWheel/50;
} else if (keyPressed && keyCode==RIGHT) {
carWheel+=0.01;
if (carWheel > 0.3) carWheel=0.3;
} else if (keyPressed && keyCode==LEFT) {
carWheel-=0.01;
if (carWheel < -0.3) carWheel=-0.3;
}
popMatrix();
}
void drawWheel(float x, float y, int front) {
pushMatrix();
translate(x, y);
if (front==1) rotateZ(carWheel);
rect(0, 0, 40, 20);
popMatrix();
}
void draw() {
background(100);
drawCar();
rect(0+187/2, 0+89/2, 187, 89);
rect(450+187/2, 0+89/2, 187, 89);
}

1.1 開啟Example 2.4 

1.2 組裝電路板，讓一個按鈕按下可以輸出

1.3 可以在 TOOL-Serial Minotor

2.1 打開processing 的文件的範例程序的Libraries 的 Serial 的Simple Read

作範例參考

結果  : 目前只做了一個按鈕(val==48)  代表有按下按鈕

做出兩個按鈕 (第一個按鈕一邊接2 一邊接負 第二個按鈕 一邊接3 一邊接負 再插一個負接地)

兩個按鈕可以使用

/*/*/* 最後程式碼

import processing.serial.*;

Serial myPort;  // Create object from Serial class

int val;      // Data received from the serial port

void setup() 

{

  size(640, 480, P3D);

  myPort = new Serial(this, "COM4", 9600);

  rectMode(CENTER);

}

float carX=640/2, carY=320/2;

float carDir=PI, carWheel=0;

void drawCar() 

{

  pushMatrix();

  translate(carX, carY);

  rotateZ(carDir);

  rect(0, 0, 187, 89);

  drawWheel(127/2, 89/2, 1);

  drawWheel(127/2, -89/2, 1);

  drawWheel(-127/2, 89/2, 0);

  drawWheel(-127/2, -89/2, 0);

  if (keyPressed && keyCode==UP) {

    carX+= cos(carDir+carWheel); 

    carY+=sin(carDir+carWheel);

    carDir+=carWheel/50;

  } else if (keyPressed && keyCode==DOWN) {

    carX-= cos(carDir+carWheel); 

    carY-=sin(carDir+carWheel);

    carDir-=carWheel/50;

  } else if (keyPressed && keyCode==RIGHT) {

    carWheel+=0.01;

    if (carWheel > 0.3) carWheel=0.3;

  } else if (keyPressed && keyCode==LEFT) {

    carWheel-=0.01;

    if (carWheel < -0.3) carWheel=-0.3;

  }

  popMatrix();

}

void drawWheel(float x, float y, int front) 

{

  pushMatrix();

  translate(x, y);

  if (front==1) rotateZ(carWheel);

  rect(0, 0, 40, 20);

  popMatrix();

}

void draw() {

  while ( myPort.available() > 0) {  // If data is available,

    val = myPort.read();    // read it and store it in val

    if (val==48)

    {

      carX+= cos(carDir+carWheel); 

      carY+=sin(carDir+carWheel);

      carDir+=carWheel/50;

    }

   else  if (val==49)

    {

      carX-= cos(carDir+carWheel); 

      carY-=sin(carDir+carWheel);

      carDir-=carWheel/50;

    }

    

  }

  println(val);

  background(100);

  drawCar();

  rect(0+187/2, 0+89/2, 187, 89);

  rect(450+187/2, 0+89/2, 187, 89);

}

*/*/*/*/